| Acronym | Definition |
|---|
| GBAA➣Georgia Business Aviation Association |
| GBAA➣Greater Baltimore Asthma Alliance (Baltimore, MD) |
| GBAA➣Greater Birmingham Apartment Association (Birmingham, AL) |
| GBAA➣Greater Boston Anesthesia Associates (Waltham, MA) |
| GBAA➣Gradient-Based Adaptive Algorithm |
| GBAA➣German Business Aviation Association eV (est. 1970; Federation of German Industries; Berlin, Germany) |